3. (20 points) Network Delays a. (10 points) Suppose two hosts, ada and grace, are separated by 10 x 10' km and are connected by a direct link of rate R 10 Mbps. Suppose the propagation speed over the link is 2.5 108 m/s. Consider sending a file of 100 Mbytes from. ada to grace. Suppose the file is sent continuously as one large message. What is the maximum number of bits that will be in the link at any given time? Note: 1 Mbps = 1,000,000 bps & 1 Mbyte (10247 bytes